My husband started cutting wood in the fall, he cut wood that was already cut down & seasoned. Then he cut down trees & cut them up. He started with a rash on his arms & ankles over a month ago, then spead to his privates. He used Benadryl & creams and it had cleared up and was about gone. Then deer season came, he wore several layers of cloths, insulated coveralls & an insulated coat. The rash started back and now its on back, chest, neck, butt, rectum, arms & now starting on his legs, after thinking about it he did lean against some trees. The rash is large red welts, itchy and some on his back were warm. He had several days last week of weakness and achy feeling and very tired. He doesn't want to go to a doctor unless he has to because he doesn't have insurance. What could be causing this? Is there anything we can do? Thanks